Loom temples

ABSTRACT

A cover for association with the rotary barrel of a loom temple comprises at least two part-cylindrical sections adapted for mounting either above or below the axis of said barrel, one or each such cover being capable of adjustment, circumferentially or radially of the latter, with reference to the other. The several cover sections may be movable independently of one another about the barrel axis, and they may be arranged at different distances from such axis so as to be capable of telescoping one within another. Alternatively two sections of a three-part cover may be individually slidable upon the third part for adjustment circumferentially of the barrel, or at least two cover sections may be independently adjustable towards or away from such barrel.

United States Patent [72] Inventor Colin L. L. Bulcock Blackburn,England [21] Appl. No. 10,901 [22] Filed Feb. 11, 1970 [45] PatentedNov. 16, 1971 [73] Assignee Lupton Bros. Ltd. [32] Priorities Feb. 11,1969 [33] Great Britain [31 I 7,327/69:

June 12, 1969, Great Britain, No. 29,804/69 [S4] LOOM TEMPLES 6 Claims,15 Drawing Figs.

[52] U.S. Cl 139/295 [51] Int. Cl D03j 1/22 [50] Field of Searchl39/292, 294, 295, 296, 298

[56] References Cited UNITED STATES PATENTS 2,823,706 2/l958 Parham139/295 FOREIGN PATENTS 709,067 l/l93l France 1,018,209 5/1950 FranceABSTRACT: A cover for association with the rotary barrel of a loomtemple comprises at least two part-cylindrical sections adapted formounting either aliove or below the axis of said barrel, one or eachsuch cover being capable of adjustment. circumferentially or radially ofthe latter, with reference to the other.

The several cover sections may be movable independently of one anotherabout the barrel axis. and they may be arranged at different distancesfrom such axis so as to be capable of telescoping one within another.

Alternatively two sections of a three-part cover may be individuallyslidable upon the third part for adjustment circumferentially of thebarrel, or at least two cover sections may be independently adjustabletowards or away from such barrel.

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room TEMPLES This invention relates to loom temples, whose purpose is toprevent widthwise contraction of the cloth during weaving and whichconventionally comprise spiked and/or corrugated barrels mounted forfree rotation at positions where they overhang opposite selvedges of thecloth, each such selvedge being constrained to engage part of theadjacent barrels periphery by the edges of a stationary part-cylindricalcover which closely embraces the latter, and being thereby maintained ata distance from the other selvedge equal to the initial spread of thewarp threads in the loom.

It is customary to mount a pair of temples upon a horizontal bar aboutthe axis of which they can rock against spring-loading should a trapoccur, and hitherto the cover of each such temple has been formed in onepiece (usually with a closed medial slot to allow inspection of theselvedge as it engages the barrel) and rigidly united to the body of thetemple either above or below the barrel and generally at a fixeddistance from the latters axis, although it is known to provide foradjustment of the cover in a direction radial to such axis.

Such adjustment will, ofcourse, vary the heights at which the clothenters and leaves the temple with reference to the barrel axis, butobviously any change in entry height will cause a similar change of exitheight in the same sense, and if an effective arc of cloth contact withthe barrel is to be maintained the permissible range of radial coveradjustment is necessarily small.

The chief object of the present invention is to enable the heights atwhich the cloth enters and leaves a loom temple to be variedindependently one of the other, whilst permitting the angle of arc overwhich the cloth is held in contact with the rotary barrel to be variedover a wide range.

A further object is to provide an improved construction of temple which,besides allowing the variable geometry aforesaid, will enable the clothto be passed either over or under the barrel as described.

According to this invention, a cover for association with the rotarybarrel of a loom temple, comprises at least two partcylindrical sectionsadapted for mounting either above or below the axis of said barrel, oneor each such section being capable of adjustment circumferentially orradially of the latter, with reference to the other.

In a preferred construction of loom temple embodying the presentinvention, two or more of the adjustable cover sections aforesaid areprovided for angular movement independently of one another about thebarrel axis, so as to vary the overall width of the composite cover andthe height of its outer edges with reference to such axis. If desired,these sections may be designed to telescope one within another.

Conveniently each movable section of the cover is formed at its outerend with an apertured lug through which passes the stationary barrelspindle and which, after angular adjustment of such section, can beclamped between a collar on said spindie and the body of the temple.

Alternatively, in the case of a cover comprising three partcylindricalsections, two of these may be individually slidable upon the thirdsection for adjustment circumferentially of the barrel.

Or again, the cover may comprise at least two sections which areindependently adjustable towards or away from the barrel and which areformed with lugs clampable at selected positions in slots in the templebody.

In the accompanying drawings;

FIGS. 1 and 2 are a side elevation and part-sectional plan view,respectively, of one form of temple embodying the present invention;

FIG. 1A is a detail view ofthe spindle of FIG. 1;

FIG. 2A is a detail view of one of the covers of FIG. 1;

FIGS. 3 to 6 are schematic side elevations showing various arrangementsof the cover sections;

FIG. 7 is a similar view showing a modified construction;

FIGS. 8 and 9 are a side elevation and plan view, respectively, of afurther modified construction; and

FIGS. 10 to 13 are schematic side elevations showing variousarrangements of the cover sections illustrated in FIGS. 8 and 9.

In the example illustrated in FIGS. 1 and 2, the temple body 10 isprovided with a split bush 1] and binding screw 12 whereby it can beclamped upon a conventional mounting bar 13, a lug 14 on such bodyhaving a barrel spindle l5 fixed thereto in parallel relation with suchbar and extending towards the centerline of the loom.

A clamping nut 16 cooperates with a collar 17 fixed near the outer endof the spindle 15 to secure the latter to the lug 14, the rotary barrel18 being located between the collar 17 and a rounded head 19 at the freeend of the spindle. Such barrel may consist of rings, rubber rollers andrings, metal rollers and rings, or any other well-known arrangement ofparts designed to exert an outwards pull upon the adjacent marginal partof the cloth.

A yarn cutting device is provided and in the particular arrangementbeing described, this comprises a pivotal cutter arm A carried by a bushB through which the mounting bar 13 passes. At one end of the arm A isprovided a cutter element C of bifurcated form. This element Ccooperates with a cutter D which is secured to the body 10 by means of adowel E. The cutter D is also provided with a bore (not shown) throughwhich the barrel spindle 15 can pass. A torsion spring F serves normallyto hold the cutter arm A in such position (as shown in FIG. 1) as torender the cutting device inoperative. At the end of the cutter am Aremote from the cutter element C there is provided an abutment G whichserves to operate the cutting device in known manner. To limit pivotalmovement of the arm A there is provided a stud H screwed onto the arm Aand having an integral pin .I which enters into an elongated slot K inthe body 10. The arm A can thus only move through a distance equivalentto the length of the slot K.

It should be appreciated that any conventional yarn cutting device canbe used, the description above being of one form only of cutting deviceknown in the art. For example, a hot wire cutting device can besubstituted for that disclosed.

The cover whereby the cloth is maintained in contact with the barrel 18is formed in two generally similar sections 20 each formed at its outerend with an apertured lug 21 through which the barrel spindle 15 passesand which can be clamped between the inside collar 17 and the supportinglug 14 on the temple body 10.

These cover sections 20 extend parallel to the barrel spindle 15 towhich they approximately correspond in length, their interior surfacesbeing part-cylindrical between parallel rounded edges 21 and concentricwith the barrel 18.

Before the clamping nut 16 at the inner end of the spindle 15 is finallytightened, each of these two cover sections 20 can be adjustedindependently of the other, to any desired angular position in relationto the axis of the barrel 18.

As shown in FIG. 1A the collar 17 is formed at one end of a bush 17awhich extends through the body 10 and through the bore of the cutter D.Apertured lugs 21 of two cover sections 20 (referred to below) seat onthe bush between its collar and the cutter D. The clamping nut 16 whentight thus serves to hold the apertured lugs 21 in any predeterminedposition both angularly in relationship to each other and radially (fora purpose referred to below). The spindle 15 passes through the bore ofthe bush 17a and its collar 17 and is secured in position by means of anut N and between which and the nut 16 is located a washer W.Additionally, the bush 17a is drilled radially to receive a grub screw Xwhich passes through a drilled and tapped hole in the body 10 to bearagainst the periphery of the spindle 15. It is thus possible to removethe nut N from the spindle to allow the nut 16 to be slackened and thusenable the positions of the apertured lugs 21 and thus the cover parts20 to be adjusted without disturbing the spindle 15 since the latter isheld by the grub screw X.

FIG. 2A depicts the cover section 20 and apertured lug 21. As will bereadily appreciated from FIG. 2A, apertured lug 21 is open at one end topermit sliding engagement with the barre] 18 on which it is mounted. Theopen end configuration of apertured lug 21 pennits the lug and thereforecover section 20 to be moved radially with respect to the barrel 18 toincrease or decrease the distance between the cover sections and theperiphery of barrel 18.

For example. as shown in FIGS. 3 and 4, the outer edge of either section20 may be set either above or below a horizontal plane through thebarrel axis to determine the cloth-entry height A or exit height B asthe case may be, it being obvious that the angular arc of contactbetween the cloth 22 and the barrel 18 is proportional to the gap leftbetween the two sections 20, which preferably taper in thickness towardstheir inner ends.

Should it be desired to obtain a shorter contact are than is provided bycomplete closure of the gap aforesaid, as shown in FIG. 5, a singlecover section 20 may be used to control the cloth 22 whilst the other isremoved or turned to the opposite side of the barrel l8 (FIG. 6), anarrangement which permits the maximum entry height A or exit height Bwhen the operative cover section is set above the barrel or the minimumsuch height when it is set below the barrel.

in the modified construction shown in FIG. 7, the internal radius ofcurvature of one cover section 20 may be made greater than the maximumdistance between the spindle axis and the exterior surface of the othersection 20 so that the two sections may be more or less completelysuperimposed or a circumferential gap left between them to give thedesired entry height A or exit height B or width of contact arc.

To facilitate the angular positioning of any cover section 20, an indexmark thereon may be related to scale graduations on the temple body 10,or vice versa, and such section may be adjusted to, and maintained in,the desired angular position by means of screw-and-nut mechanism as analternative to being moved manually and clamped in place as abovedescribed.

In the further modification shown in FIGS. 8 and 9 mutually parallelfaces 23 are provided on the temple body 10 at opposite sides of thespindle to provide alternative seatings for a lug 24 at one end of amain part-cylindrical cover section 25 which can be fixed concentricwith the spindle by means of at least one setscrew 26 engaging a tappedhole in the body 10.

Arranged internally of this main section 25 and slidable towards or awayfrom its centerline are two secondary partcylindrical cover sections 27provided adjacent their inner edges with circumferential slots 28 whichreceive the heads of screws 29 engaging tapped holes in the main section25 so that each section 25 can be clamped in place after adjustment toany available angular position relative to the axis of the barrel 18.

For example, as shown in FIG. 10 the section 27 at the entry side of thetemple may be adjusted outwardly as far as possible to bring its outeredge (say) three-eighths of an inch from the shuttle-race 30, whilst thecorresponding section 27 at the exit side is adjusted inwards to thefull extent to provide the maximum difference between the cloth-entryand -exit heights A, B.

Conversely (FIG. 11), the entry-side section 27 may be moved inwards tothe full extent, bringing its outer edge (say) seven-eighths of an inchabove the race board 30, and the exitside section adjusted outwards asfar as possible.

The are of cloth contact with the barrel may be increased by moving bothadjustable sections 27 fully outwards so that their outer edges are eachone-half of an inch above the race board 30 (FIG. 12), or the contactare may be decreased by fully retracting both sections 27 so that theirinner edges are adjacent or in contact, and their outer edgesthree-fourths of an inch above the race board 30, as in FIG. 13.

Obviously, the same range of cloth-contact arcs is available when thecomposite cover is dismounted and refitted at the underside of thetemple body 10, but in this case the entry height A is a maximum whenthe adjacent adjustable section 27 is slidden fully outwards and aminimum when it is fully retracted. t

In yet another modification the ad ustable cover sections,

instead of being rotatable about the barrel 18, are independentlyadjustable towards or away from the latter, their outer ends beingformed with lugs engaging separate slots in the temple body 10 and eachbeing clampable at any point along the associated slot. The slotsaforesaid may be parallel or mutually divergent in straight or curvedlines, and the clamping means may comprise screws or nutted studsengaged with such lugs.

Whichever construction is employed, the cover sections may be made offerrous or nonferrous metal or other suitable material by pressing,forging, casting or any other process and their edges may be somewhatcurved instead of being straight. Furthermore long sections may bestiffened by longitudinal ribs on their exterior surfaces.

I claim:

1. A loom temple comprising a body portion, a spindle fixed in said bodyportion, a barrel rotatable upon said spindle, and a cover so mounted onsaid spindle as to embrace said barrel circumferentially thereof, saidcover including at least two part-cylindrical sections, said sectionsbeing adjustable radially and circumferentially with respect to saidbarrel and to each other.

2. A loom temple as claimed in claim 1, wherein each cover section hasan apertured lug at one end to permit radial movement of said coversection and to receive said spindle, said spindle having a collarlocated endwise thereof, said cover sections being positionedcircumferentially of said spindle by clamping of said lugs between saidcollar and said body portion.

3. A loom temple as claimed in claim I, wherein said cover sections aremovable independently of one another around the axis ofsaid barrel.

4. A loom temple as claimed in claim 1, wherein said cover sections aremovable independently of one another around the axis of said barrel butarranged at different distances from one another to allow relativetelescoping thereof.

5. A loom temple as claimed in claim 1, wherein two of said coversections are individually slidable upon a third such section.

6. A loom temple as claimed in claim 1, including a fixedpart-cylindrical cover section, clamping screws carried by said fixedsection, and two movable cover sections each formed with acircumferential slot through which one of said clamping screws is passedto allow limited circumferential adjustment of such movable sectionrelative to said fixed section.

i i t i i

1. A loom temple comprising a body portion, a spindle fixed in said bodyportion, a barrel rotatable upon said spindle, and a cover so mounted onsaid spindle as to embrace said barrel circumferentially thereof, saidcover including at least two part-cylindrical sections, said sectionsbeing adjustable radially and circumferentially with respect to saidbarrel and to each other.
 2. A loom temple as claimed in claim 1,wherein each cover section has an apertured lug at one end to permitradial movement of said cover section and to receive said spindle, saidspindle having a collar located endwise thereof, said cover sectionsbeing positioned circumferentially of said spindle by clamping of saidlugs between said collar and said body portion.
 3. A loom temple asclaimed in claim 1, wherein said cover sections are movableindependently of one another around the axis of said barrel.
 4. A loomtemple as claimed in claim 1, wherein said cover sections are movableindependently of one another around the axis of said barrel but arrangedat different distances from one another to allow relative telescopingthereof.
 5. A loom temple as claimed in claim 1, wherein two of saidcover sections are individually slidable upon a third such section.
 6. Aloom temple as claimed in claim 1, including a fixed part-cylindricalcover section, clamping screws carried by saiD fixed section, and twomovable cover sections each formed with a circumferential slot throughwhich one of said clamping screws is passed to allow limitedcircumferential adjustment of such movable section relative to saidfixed section.